Influence of Different Substituents on Anion Binding Ability in Aromatic Hydroxyl Group Derivatives: Experiment and Theory

Author(s): X. Shang, Y. Hao, Yi. Wang, J. Han, Y. Zhai, S. Jia, J. Zhang, X. Xu

Journal Name: Current Analytical Chemistry

Volume 8 , Issue 3 , 2012

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A series of new sensors (1, 2, 3 and 4) bearing aromatic hydroxyl group shows the strongest binding ability for AcO- by UV-vis, fluorescence, 1H NMR titrations and theoretical investigation. The sensitivity for AcO- can be tuned by electron push-pull properties of the substituents on the aromatic ortho position of the sensor. Especially, sensor 4 containing nitro group shows the best sensitivity. The excellent sensitivity of 4 for AcO- is attributed to the structure match of host-guest. In addition, the interacted process of host-guest accompanies color changes and can be used as new colorimetric chemosensors. Real life experimental result indicates that sensor 4 can be used to qualitatively detect the fluoride in toothpaste.

Keywords: Acetate detection, anion recognition, aromatic hydroxyl group, binding ability, chemosensor, colorimetric sensor, fluoride toothpaste, host-guest chemistry, molecular probe, selectivity, theoretical investigation

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Article Details

Year: 2012
Published on: 27 May, 2012
Page: [392 - 399]
Pages: 8
DOI: 10.2174/157341112801264950
Price: $65

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